<!DOCTYPE html>
<link rel="author" title="Morten Stenshorne" href="mailto:mstensho@chromium.org">
<link rel="help" href="https://drafts.csswg.org/css-page-3/#margin-dimension">
<meta name="assert" content="Auto margins adjacent to the page area should never become negative.">
<link rel="match" href="auto-margins-003-print-ref.html">
<style>
  @page {
    margin: 100px;
    size: 500px 400px;
    border: solid blue;
    @top-left-corner {
      border: solid;
      width: 25px;
      height: 25px;
      margin: auto;
      margin-top: 90px;
      margin-left: 90px;
      content: "";
    }
    @top-left {
      border: solid;
      width: 25px;
      height: 25px;
      margin: auto;
      margin-top: 90px;
      content: "";
    }
    @top-center {
      border: solid;
      width: 25px;
      height: 25px;
      margin: auto;
      margin-top: 90px;
      content: "";
    }
    @top-right {
      border: solid;
      width: 25px;
      height: 25px;
      margin: auto;
      margin-top: 90px;
      content: "";
    }
    @top-right-corner {
      border: solid;
      width: 25px;
      height: 25px;
      margin: auto;
      margin-top: 90px;
      margin-right: 90px;
      content: "";
    }
    @right-top {
      border: solid;
      width: 25px;
      height: 25px;
      margin: auto;
      margin-right: 90px;
      content: "";
    }
    @right-middle {
      border: solid;
      width: 25px;
      height: 25px;
      margin: auto;
      margin-right: 90px;
      content: "";
    }
    @right-bottom {
      border: solid;
      width: 25px;
      height: 25px;
      margin: auto;
      margin-right: 90px;
      content: "";
    }
    @bottom-right-corner {
      border: solid;
      width: 25px;
      height: 25px;
      margin: auto;
      margin-right: 90px;
      margin-bottom: 90px;
      content: "";
    }
    @bottom-right {
      border: solid;
      width: 25px;
      height: 25px;
      margin: auto;
      margin-bottom: 90px;
      content: "";
    }
    @bottom-center {
      border: solid;
      width: 25px;
      height: 25px;
      margin: auto;
      margin-bottom: 90px;
      content: "";
    }
    @bottom-left {
      border: solid;
      width: 25px;
      height: 25px;
      margin: auto;
      margin-bottom: 90px;
      content: "";
    }
    @bottom-left-corner {
      border: solid;
      width: 25px;
      height: 25px;
      margin: auto;
      margin-left: 90px;
      margin-bottom: 90px;
      content: "";
    }
    @left-bottom {
      border: solid;
      width: 25px;
      height: 25px;
      margin: auto;
      margin-left: 90px;
      content: "";
    }
    @left-middle {
      border: solid;
      width: 25px;
      height: 25px;
      margin: auto;
      margin-left: 90px;
      content: "";
    }
    @left-top {
      border: solid;
      width: 25px;
      height: 25px;
      margin: auto;
      margin-left: 90px;
      content: "";
    }
  }
</style>
There should be 16 margin boxes around this page area. They should all be
squares, and their borders should be flush with the blue border. They should not
overlap with the page area.
